The Linux community is splitting - right down the middle, at this point - over Microsoft's controversial claims that the open-source operating system infringes on patents it holds. Last Tuesday, Mandriva became the third Linux vendor within five days to say it isn't interested in signing a licensing deal with Microsoft to avoid possible infringement claims. A blog posting to that effect by Mandriva CEO Francois Bancilhon followed similar declarations by officials at Red Hat and Canonical.